Effective Temperature in an Interacting Vertex System: Theory and Experiment on Artificial Spin Ice

被引：108

作者：

Nisoli, Cristiano ^{[1
,2
]}

Li, Jie ^{[3
,4
]}

Ke, Xianglin ^{[3
,4
]}

Garand, D. ^{[3
,4
]}

Schiffer, Peter ^{[3
,4
]}

Crespi, Vincent H. ^{[3
,4
]}

机构：

[1] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

[2] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA

[3] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[4] Penn State Univ, Mat Res Inst, Davey Lab 104, University Pk, PA 16802 USA

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 04期

基金：

美国国家科学基金会;

关键词：

MODEL;

D O I：

10.1103/PhysRevLett.105.047205

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Frustrated arrays of interacting single-domain nanomagnets provide important model systems for statistical mechanics, as they map closely onto well-studied vertex models and are amenable to direct imaging and custom engineering. Although these systems are manifestly athermal, we demonstrate that an effective temperature, controlled by an external magnetic drive, describes their microstates and therefore their full statistical properties.

引用

页数：4

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